User's Manual

Table Of Contents

Design Overview

InterReach Fusion Wideband Installation, Operation, and Reference Manual Page 63

4 Determine the in-building environment; refer to “Estimating RF Coverage” on page 83.

• Determine which areas of the building requir

e coverage (entire building, public areas,

parking levels, and so on).

• Ob

tain floor plans to determine floor space in a b

uilding and the wall layout of the

proposed areas to be covered. Floor plans are also useful when you are selecting antenna

locations.

• If possibl

e, determine the building’s construction materials (sheetrock, metal, concrete,

and so on).

• Determine the type of environment:

– open layout (for example, a convention center)

– dense, close

walls (for example, a hospital)

– mixed use (for example, an office building with hard wall offices

and cubicles).

5 Determine the appropriate estimated path

loss slope that corresponds to the type of

building and its layout, and estimate the coverage distance for each RAU; refer to

“Estimating RF Coverage” on page 83.

Use the Path Loss Slope (PLS), which gives a value to the RF propagation cha

racteristics

within the building, to convert the RF link budget into an estimate of the coverage distance

per antenna. This helps establish the quantities of Fusion Wideband equipment you need. The

actual path loss slope that corresponds to the specific RF environment inside the building can

also be determined empirically by performing an RF site-survey of the building. This involves

transmitting a calibrated tone for a fixed antenna and making measurements with a mobile

antenna throughout the area surrounding the transmitter.

6 Determine the items required to connec

t to the Base Station; refer to “Connecting a

Main Hub to a Base Station” on page 101.

Once you know the quantities of Fusion Wideband

equipment to be used, you can determine

the accessories (combiners/dividers, surge suppressors, repeaters, attenuators, circulators,

and so on.) required to connect the system to the Base Station.

The individual elements that must be

onsidered in designing a Fusion Wideband solution are

explained in the following sections.

NOTE: Access the TE Customer Portal for on-line dimensioning and design tools; see “Accessing the TE

Customer Portal” on page 230.